Bolt Guides

When can you eat salad after gastric sleeve surgery? Find out the recommended timeline, safest ingredients, foods to avoid, and expert NHS-aligned tips for reintroducing raw foods comfortably.

Weight Loss

min read

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

Use a gastric sleeve weight loss calculator to estimate your results after sleeve gastrectomy. Learn how these tools work, NHS eligibility criteria, and expert recovery planning advice.

Read all on weight loss

GLP-1 Brands

Read all on GLP-1 brands

Wegovy

Answer all your questions about Wegovy treatments for weight loss.

Read Wegovy guides

Mounjaro

Answer all your questions about Mounjaro treatments for weight loss.

Read Mounjaro guides

GLP-1 Brands

min read

How Long Does Rybelsus Stay in Your System?

How long does Rybelsus stay in your system? Discover the elimination timeline, factors affecting clearance, and what happens when you stop taking this type 2 diabetes medication.

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What Is Ozempic Personality? Mood Changes and Semaglutide

GLP-1 Brands

min read

What Is Ozempic Personality? Mood Changes and Semaglutide

What is Ozempic personality? Explore reported mood and behavioural changes with semaglutide, the scientific evidence, and when to speak to your GP about side effects whilst taking Ozempic for type 2 diabetes.

What Does Trulicity Do to Your Body? Effects Explained

GLP-1 Brands

min read

What Does Trulicity Do to Your Body? Effects Explained

Discover what Trulicity does to your body, including how this GLP-1 receptor agonist lowers blood sugar, affects weight and appetite, and impacts long-term health in type 2 diabetes management.

Saxenda & Blood Donation: UK Eligibility Guide

GLP-1 Brands

min read

Saxenda & Blood Donation: UK Eligibility Guide

Taking Saxenda and want to give blood? Learn UK eligibility rules from NHSBT, what liraglutide means for donors, and when to seek advice before donating.

Read all on GLP-1 brands

Men’s Health

Testosterone

Answer all your questions about testosterone.

Read testosterone guides

Erectile dysfunction

Answer all your questions about erectile dysfunction.

Read erectile dysfunction guides

Trans Women & Erectile Function: UK Guide

Erectile Dysfunction

min read

Trans Women & Erectile Function: UK Guide

Learn how hormone therapy affects erections in trans women, whether Viagra is suitable, and what support is available through the NHS.

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Testosterone

min read

How Often Should Testosterone Be Checked When Using Testogel?

Find out how often testosterone levels should be checked when using Testogel. Learn about UK monitoring schedules, blood tests, safety checks, and signs your dose may need adjusting under NHS guidelines.

Where to Put Testogel for Women: Safe Application Sites

Testosterone

min read

Where to Put Testogel for Women: Safe Application Sites

Discover where to put Testogel safely if you're a woman prescribed this off-label testosterone therapy. Learn the recommended application sites, step-by-step technique, and essential safety precautions to optimise treatment and minimise risks.

Testosterone

min read

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Can testosterone cause gynaecomastia? Learn how testosterone converts to oestrogen, who is most at risk, how to spot symptoms, and what NHS treatment options are available.

FBG, HbA1c and Triglycerides: UK Reference Ranges and Diabetes Monitoring

Weight Loss

min read

FBG, HbA1c and Triglycerides: UK Reference Ranges and Diabetes Monitoring

FBG, HbA1c, and triglycerides explained: understand UK reference ranges, what abnormal results mean, and how NHS guidance shapes diabetes monitoring and treatment.

Weight Loss

min read

Best Collagen Pills for Weight Loss: Evidence, Safety and NHS Guidance

Best collagen pills for weight loss — do they really work? We review the evidence, safety considerations, and NHS-recommended alternatives to help you make an informed choice.

Mounjaro

min read

What to Eat on Mounjaro Injection Day: UK Dietary Guidance

Discover what to eat on Mounjaro injection day to minimise side effects and support your treatment. Expert UK guidance on foods to choose, avoid, and when to seek medical advice for tirzepatide therapy.

Omega-3 Fish Oil: Benefits, Dosage & UK Guidance

Supplements

min read

Omega-3 Fish Oil: Benefits, Dosage & UK Guidance

Explore the evidence behind omega-3 fish oil, from cardiovascular support to hypertriglyceridaemia. Includes UK dosage guidance and safety considerations.

Exercises for Man Boobs: Causes, Workouts, and When to See a GP

Weight Loss

min read

Exercises for Man Boobs: Causes, Workouts, and When to See a GP

Exercises for man boobs: discover which workouts reduce chest fat, why true gynaecomastia needs medical review, and when to see your GP. Evidence-based UK guidance.

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Weight Loss

min read

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Can bariatric surgery put type 2 diabetes into remission? Explore NHS eligibility, surgical options, remission rates, and long-term outcomes.

Mounjaro

min read

Eating Pizza on Mounjaro: UK Guide to Managing Diet

Can you eat pizza on Mounjaro? Discover practical tips for enjoying pizza whilst taking tirzepatide, managing side effects, and balancing your diet with UK diabetes guidance.

Can You Take Trulicity with Kidney Disease? Safety & Guidance

GLP-1 Brands

min read

Can You Take Trulicity with Kidney Disease? Safety & Guidance

Can you take Trulicity with kidney disease? Discover how dulaglutide works safely in CKD patients, dosing guidance, monitoring requirements, and important safety considerations for managing type 2 diabetes with renal impairment.

How Many Probiotics Per Day: UK Dosage Guidance and Safety

Supplements

min read

How Many Probiotics Per Day: UK Dosage Guidance and Safety

How many probiotics per day should you take? Discover UK guidance on probiotic dosage, CFU counts, strain selection, and safety considerations for digestive health. Evidence-based advice for choosing the right probiotic supplement.

Retatrutide Dosing: What You Need to Know Before Taking It

GLP-1 Brands

min read

Retatrutide Dosing: What You Need to Know Before Taking It

Wondering how much retatrutide to take? Retatrutide is not yet approved in the UK — find out what the clinical trial data shows, safety risks, and which licensed weight loss treatments are available to you now.

Testosterone

min read

Can Testosterone Treatment Cause Low White Blood Count?

Can testosterone treatment cause low white blood count? Discover the evidence on testosterone therapy and leucopenia, recognised haematological effects, monitoring requirements, and when to seek medical advice in the UK.

Hair Loss

min read

Best Hair Loss Treatment: NHS Options, Prescriptions and Safety Guide

Find the best hair loss treatment for your needs — explore NHS options, prescription medicines like finasteride and minoxidil, safety considerations, and expert guidance on when to see a doctor.

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Weight Loss

min read

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Discover the fascinating history of incretin mimetics, from early incretin effect observations to modern GLP-1 receptor agonists. Learn how these diabetes medicines evolved, their UK regulatory journey, and their transformative impact on type 2 diabetes management and cardiovascular outcomes.

Do Weight Loss Injections Cause Pancreatic Cancer? UK Evidence Review

Wegovy

min read

Do Weight Loss Injections Cause Pancreatic Cancer? UK Evidence Review

Do weight loss injections cause pancreatic cancer? Discover what UK regulators, clinical trials, and current evidence reveal about GLP-1 medications like Wegovy and Saxenda. Expert medical guidance on safety, risks, and informed decision-making for obesity treatment.

Magnesium for Muscle Cramps: Evidence, Dosage and Safety

Supplements

min read

Magnesium for Muscle Cramps: Evidence, Dosage and Safety

Does magnesium for muscle cramps really work? Discover the latest evidence, who might benefit, safe dosing guidance, and when to see your GP for persistent or severe cramping.

Bolt Guides

Featured

What Is RMR? Resting Metabolic Rate Explained

Weight loss

What Is RMR? Resting Metabolic Rate Explained

When Can I Eat Salad After Gastric Sleeve Surgery?

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

GLP-1 Brands

Wegovy

Mounjaro

How Long Does Rybelsus Stay in Your System?

What Is Ozempic Personality? Mood Changes and Semaglutide

What Does Trulicity Do to Your Body? Effects Explained

Saxenda & Blood Donation: UK Eligibility Guide

Men’s Health

Testosterone

Erectile dysfunction

Trans Women & Erectile Function: UK Guide

How Often Should Testosterone Be Checked When Using Testogel?

Where to Put Testogel for Women: Safe Application Sites

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Browse all

FBG, HbA1c and Triglycerides: UK Reference Ranges and Diabetes Monitoring

Best Collagen Pills for Weight Loss: Evidence, Safety and NHS Guidance

What to Eat on Mounjaro Injection Day: UK Dietary Guidance

Omega-3 Fish Oil: Benefits, Dosage & UK Guidance

Exercises for Man Boobs: Causes, Workouts, and When to See a GP

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Eating Pizza on Mounjaro: UK Guide to Managing Diet

Can You Take Trulicity with Kidney Disease? Safety & Guidance

How Many Probiotics Per Day: UK Dosage Guidance and Safety

Retatrutide Dosing: What You Need to Know Before Taking It

Can Testosterone Treatment Cause Low White Blood Count?

Best Hair Loss Treatment: NHS Options, Prescriptions and Safety Guide

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Do Weight Loss Injections Cause Pancreatic Cancer? UK Evidence Review

Magnesium for Muscle Cramps: Evidence, Dosage and Safety

Personalized weight management for women